Cylindrical structure and blocks thereof



Juy 24, E923.

F. LE COCQ ET AL.

CYLINDRICAL STRUCTURE AND BLOCKSTHEREOF Filed March 20. 1922 2 Sheets-Sheet l LECocQ, 'Bm y .may 24, 1923.

F. LE COCQ ET Al..

CYLINDRIGAL STRUCTURE 'ANDBLOCKS THEREOF 'Filed March 20. 2 Sheets-Sheet 2 I J 1 I u //VE/VTOH PRA/Wr Z, E Coo@ MAIL/n ing our invention, e

Figure 1 is a section through a cylindrical Patented July 24, 1923.

, UNITED TATLESE 1,4629@ PATENT qofFFlCE.-

` FRANK LE coco AND IRWIN LE coco, or ernennen, 1 SOUTH DAKOTA.

CYLINDRICAL STRUCTURE AND BLOCKS THEREOF.

`Application Yledlllarch 20, 1922.

To all whom .it may concern.'

Be it known Tthat we,1FRANK Ln Coco and IRWIN Ln CooQ, citizens of the United States, and .residents of Aberdeen, in thefcoullty of `Brown and State of lSouth Dakota, have 'invented `certain new and `useful Improvements in Cylindrical Structures and Blocks yThereof, of which `the following is a specification.

Our present invention relates `generally to cylindrical block structures such as sewers, culverts or ,conduits and `'to the blocks thereof, our object being the provision of such ,a vstructure formed from blocks as well as the blocks of which it is `formed, whereby quick ready formation is brought about and a structure promoted involving a minimum of 'Inateriah'l which will be water-tight and capable of resisting internal as well as eX- ternal pressure. i

In the accompanying drawings illustratstructure illustrating the practical application of our invention,

Figure 2 is an end view of the key block,

Figure 3 is a topi plan view thereof,

Figure 4 is a section therethrough taken on line 4 4 of Figure 3,

Figure 5 is an end view of the invert block,

Figure 6 is a bottom plan view thereof,

Figure 7 is a section therethrough on line 7--7 of Figure 5,

Figure 8 is an end view of one of the wall blocks,

Figure 9 is a plan view of one of the wall blocks looking at the outer face thereof, and

Figure 10 is a section therethrough taken on line 10-10 of Figure 8. v

Referring now to these gures, we employ in the formation of a cylindrical structure, such as a sewer, culvert or conduit, a series of wall blocks 10 of similar formation, an invert block 11, which is used at the lowermost point of the structure, and a key block 12 which is used at the uppermost point of the structure, and as will be hereinafter obvious we produce a structure which has in effect an outer shell and an inner lining involving a minimum amount of material in the structure as a whole as well as a minimum amount of labor in its erection, and one which will be water proof and is capable of resisting both internal and external pressures.

Serial No; 545,088.

i Each of the several wall .blocks 10, which like the invert block v11 and the key block 12, is generally segmental in form, has outer and inner hollow sections 13 and- 14 offset with respect to one another and strengthened by cross ribs 15,vboth of these sections vhaving along xone side edge outstanding ribs 16 and having along the other side edge recesses 17 to receive the ribs 16 `of the next adjacent block, it being noted from an inspection of Figure 1 that the `several wall i blocks 10 are all disposed with :their `.ribs 16 downwardly and their recesses 17 up wardly so that it becomes a simple matter to dispose binding material, that is cement `or mortar in the recesses for Lthe seating and .y e

tions 14, in series extending upwardly from opposite sides o`f the invert block 11, the latter of which as shown in Figure 1 and in Figures 5, 6 and 7 has an inner section 18 with side recesses 19 which receive the inner ribs 16 of the lowermost wall blocks 10 upon opposite sides thereof.

The invert block 11 also has an outer section 20 which is hollow and has internal strengthening cross ribs 21 and whose side portions project laterally beyond the sides of its inner section 18 and have' side recesses 22 which thus receive the outer ribs 16 of the lowermost wall blocks 10 at opposite sides of the invert block.

The key block 12 shown in Figures 2, 3 and 4 has an outer hollow section 23 provided at its opposite sides `with extending ribs 24 which may enter the outer recesses 17 of the adjacent side wall blocks upon opposite sides of the key block and also has an inner section 25, also hollow and provided with internal cross ribs 26 as well as with side portions projecting beyond the side portions of the outer section 23 and terminating in ribs 26 which enter the inner recesses 17 of the next adjacent side wall blocks 10 upon opposite sides of the key block.

It is thus obvious that the invert block 11 and the key block 12 disposed at diametrically opposite points of the structure serve to finish out and connect the offset overlapping sections of the side wall blocks in such way that by virtue of this connection as well as the structure of the blocks it becomes quite apparent they are adapted in their connected relation to resist both internal as Well as external. strains and pressures.

It Will also be noted from ,an inspection of Figuresy 4, 7 Vand 10 in particular that the outer Walls of the outer sectionsoi` each'of the segmental blocks is longitudinally offset so that in addition tothe circumferential overlapping ofr the sections ot the blocks themselvesthere is alsohad inthe finished cylindrical structure an overlapping of portions voftheblocks in'the direction of the axis of the structure and upon its external surface, this structure coacting` with the circumferential overlapping ofV the block sections to produce a Waterproof structure as a Whole. lnl Figure jathisoset outer Wall is'` indicated at 28,'in Figure '7 the ollset outerWall appears at`29, and in FigureY l0 the offset' outer Wallis indicated at 30.

We'claiImW `1. A cylindrical structure of block vforma 'l tion' including a series oisegmental vWall blocl s eachhaving laterally oii'set inner and v"outer sections "adapting the same vto overlapping interlocking connection and provided with ribs and recesses along loppov site sides,` 'and vdiametrically opposed blocks at opposite sides of which the Wall blocks overlap in opposite directions, cach of said diametrically opposed blocks having inner and outer sections of different lengths and each having means along'the sides of each section to interlockingly engage the side ribs and recesses of the oifset sections oi adjacent Wall blocks upon opposite sides thereof.

2. A cylindrical structure of block forniation including a series of segmental Wall blocks, eachhaving laterally-offset innerand outer sections adapting the' same to overlapping interlocking connection,` and diametri- Vcally opposed blocks at opposite sides of of the inner and outerfsections 'ofeach thereof. x Y

n y rRANKLEcocQ.

iRWaN Ln coca.- 

